![MasterChef Australia](http://image.tmdb.org/t/p/w185/m5akdtbWznF8KpOewKyKw0C36s1.jpg)
This Mystery Box is a cracker - literally. Then later, the winner of this challenge gets to pick the key ingredient for the following Invention Test.
This Mystery Box is a cracker - literally. Then later, the winner of this challenge gets to pick the key ingredient for the following Invention Test.